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filewatcher.go
49 lines (38 loc) · 1.01 KB
/
filewatcher.go
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// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package filewatcher
import (
"context"
"sort"
"strings"
"github.com/fsnotify/fsnotify"
)
var NewFactory func(ctx context.Context) (FileWatcherFactory, error)
type FileWatcherFactory interface {
AddFile(name string) error
AddDirectory(name string) error
StartWatching(context.Context) (EventsAndErrors, error)
Close() error
}
type EventsAndErrors interface {
Events() <-chan fsnotify.Event
Errors() <-chan error
Close() error
}
func longestCommonPathPrefix(strs []string) string {
if len(strs) == 0 {
return ""
}
sort.Strings(strs)
first := strings.Split(strs[0], "/")
last := strings.Split(strs[len(strs)-1], "/")
longestPrefix := []string{}
for i := 0; i < len(first); i++ {
if last[i] != first[i] {
break
}
longestPrefix = append(longestPrefix, last[i])
}
return strings.Join(longestPrefix, "/")
}